Disclaimer:

The Nonindigenous Occurrences section of the NAS species profiles has a new structure. The section is now dynamically updated from the NAS database to ensure that it contains the most current and accurate information. Occurrences are summarized in Table 1, alphabetically by state, with years of earliest and most recent observations, and the tally and names of drainages where the species was observed. The table contains hyperlinks to collections tables of specimens based on the states, years, and drainages selected. References to specimens that were not obtained through sighting reports and personal communications are found through the hyperlink in the Table 1 caption or through the individual specimens linked in the collections tables.




Ctenopharyngodon idella var. triploid
Ctenopharyngodon idella var. triploid
(Grass Carp (triploid))
Fishes
Exotic
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Ctenopharyngodon idella var. triploid (Valenciennes in Cuvier and Valenciennes, 1844)

Common name: Grass Carp (triploid)

Taxonomy: available through www.itis.govITIS logo

Native Range:
US auto-generated map Legend USGS Logo
Alaska auto-generated map
Alaska
Hawaii auto-generated map
Hawaii
Caribbean auto-generated map
Puerto Rico &
Virgin Islands
Guam auto-generated map
Guam Saipan
Hydrologic Unit Codes (HUCs) Explained
Interactive maps: Point Distribution Maps

Nonindigenous Occurrences:

Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Ctenopharyngodon idella var. triploid are found here.

StateYear of earliest observationYear of last observationTotal HUCs with observations†HUCs with observations†
Alabama198919891Guntersville Lake
Arizona200820081Lower Verde
California198519852Salton Sea; Whitewater River
Colorado199319931Colorado Headwaters
Connecticut199720171Housatonic
Delaware198719922Chincoteague; Mid Atlantic Region
Florida197220106Florida Southeast Coast; Hillsborough; Lower Suwannee; Oklawaha; South Atlantic-Gulf Region; Upper St. Johns
Georgia1990201714Altamaha; Little; Lower Flint; Lower Oconee; Lower Savannah; Middle Chattahoochee-Lake Harding; Middle Flint; Oostanaula; Spring; Upper Coosa; Upper Flint; Upper Ocmulgee; Upper Oconee; Upper Savannah
Illinois199320176Chicago; Des Plaines; Little Calumet-Galien; Lower Illinois-Lake Chautauqua; Middle Wabash-Busseron; Upper Illinois
Indiana201220153Kankakee; Lake Michigan; Little Calumet-Galien
Kentucky201720171Middle Ohio-Laughery
Michigan201220172Lake Erie; Lake Huron
Missouri201120111Upper Black
New York201020101Irondequoit-Ninemile
North Carolina200020181Upper Catawba
Ohio2012201812Ashtabula-Chagrin; Black-Rocky; Cuyahoga; Hocking; Lake Erie; Lower Scioto; Muskingum; Raccoon-Symmes; Sandusky; Upper Great Miami; Upper Ohio-Shade; Upper Scioto
Oregon198619931Siletz-Yaquina
Pennsylvania201320151Upper Allegheny
South Carolina198920062Lake Marion; Upper Broad
Texas1989201511Austin-Travis Lakes; Buffalo-San Jacinto; Lake O'the Pines; Lower Angelina; Lower West Fork Trinity; Middle Guadalupe; Middle Sabine; Navidad; Pedernales; Upper Neches; West Fork San Jacinto
Virginia199419948Lower James; Middle Potomac-Anacostia-Occoquan; Middle Potomac-Catoctin; Pamunkey; South Fork Shenandoah; Upper Clinch; Upper James; York
Washington199219962Lower Columbia-Sandy; Lower Cowlitz
West Virginia198519851Conococheague-Opequon
Wisconsin201120122La Crosse-Pine; Lower Wisconsin

Table last updated 10/4/2018

† Populations may not be currently present.


Other Resources:

Revision Date: 8/6/2018

Citation Information:
U.S. Geological Survey, 2018, Ctenopharyngodon idella var. triploid (Valenciennes in Cuvier and Valenciennes, 1844): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=2948, Revision Date: 8/6/2018, Access Date: 10/20/2018

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.

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URL: https://nas.er.usgs.gov
Page Contact Information: Pam Fuller - NAS Program (pfuller@usgs.gov)
Page Last Modified: Tuesday, October 02, 2018

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2018]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [10/20/2018].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Pam Fuller. For queries involving invertebrates, contact Amy Benson.